Robert brass



(No Model.)

B. BRASS.

GBOMMET.

No. 395,478. Patented Jan. 1, 1889.

will a v C A 2% NTTED STATES PATENT OFFICE.

ROBERT BRASS, or BROOKLYN, NEW YORK, ASSIGNOR TO JOHN BOYLE, or

SAME rLAc GROMMET.

SPECIFICATION forming part of Letters Patent No. 395,478, dated January 1, 1889.

Application filed May 28, 1888. $erial No. 275,334. (No model.)

To all whom it may concern:

Be it known that 1, ROBERT BRASS, of Brooklyn, in the county of Kings and State of New York, have invented certain new and useful Improvements in Grommets, of which the following is a specification. This invention relates to an improved construction of grommet, by which the spreading of the opening in the fabric to which the grommet is applied and the raveling or fraying out of the fabric is entirely prevented and a grommet obtained that binds in a reliable manner on the fabric without getting detached from the fabric; and the intention consists of a grommet composed of a flanged thimblc, an eyelet having bent-up and alternating prongs at both edges for piercing the fabric, and a washer that extemls over the eyelet and is retained by the clinched shank. of the thimble.

In the accompanying drawings, Figure 1 represents, respectively, a top view and vertical central sections of the thimblcs; Fig. 2, a bottom view and a vertical central section of the eyelet, and Fig. 3 a top view and a vertical central section of the washer, of my improved grommet. Fig. lis a yertical central section of the grommet before the same is clinched onto the fabric; and Fig. is a vertical central section of the gromm ct, showing it as clinched to the fabric.

Similar letters of reference indicate corresponding parts.

In the drawings, A represents the clinched thimble, B the eyelet, and U the washer, which together form my improved grommet. The thimbleA and washer C are made in the usual shape, while the eyelet B, which is interposed between the lianged'thimble and 4 washer, is made with a tubular shank, I),

having an outwardly-bent flange, Z). The

edge of the shank I) and the edge of the flange I) are provided with prongs d, which alternate with each other, and which, when the eyelet is clinched, are forced through the fabric, so as to rigidly bind the eyelet on the same.

The grommet is applied to the fabric in the well-known manner by first passing the shank of the thimble through the hole in the fabric, then placing the shank of the eyelet over the shank of the thimble, and finally placing the washer over the flange of the eyelet, as shown in Fig. 4, and then clinching the three parts together, so that they tightly bind the fabric. In clinching the parts (which is accomplished by suitable dies) the eyelet is applied tightly to the fabric, the teeth or prongs of the same piercing the fabric from opposite sides, while part of the eyelet is bent or doubled up around the edge of the opening until the teeth of the lower edge of the eyelet pierce the fabric from below and bind on the samein the nature of a jaw,

as shown in Fig. 5, the teeth of the upper edge entering the fabric firmly. The flange of the thimble and, the washer, retained by the outward] y-bent shank of the thimble, form a second connection with the fabric at some distance from the eyelet, whereby a twofold connection with the fabric is obtained that of the eyelet and that of the tl'iimble and washer. By this twofold conn ection the stretching or spreading of the fabric at the opening around which the grommet has been applied is wevented, and consequently the raveling or fraying out of the fabric effectually prevented. The flanged thimble and the covering-washer form a protection for the eyelet inclosed thereby, and form a grommet of great strength and rigidity. The eyelet can be made round, oblong, or in any other shape, according to the shape of the gron'nnet with which it is in ten d ed to be used.

I do not claim, lnroadly, in this application the eyelet shown in, l ig. 2, such an. eyelet provided with alternating teeth or prongs at both edges is specifically shown and claimed in an application made by me May 28, 1888, Serial No. 275,335, it being shown in this application only in coml'iination with the flanged thimble and the washer.

Having thus described my invention, I claim as new and desire to secure by Letters Patent- A grommet composed of a flanged thilnble, an intermediate flanged eyelet provided with teeth or prongs at both edges, said prongs alternating With each other and a Washer extending over the eyelet and secured by the clinched shank of the thimble, substantially as set forth.

In testimony that I claim the foregoing as my invention I have signed my namein presence of two subscribing Witnesses.

ROBERT BRASS.

it-messes:

PAUL GoEPEL, J OHN A. STRALEY. 

